求化简

代码

a = [int(i) for i in input().split()]
s = a[0]
a = a[1]
d = 0
f = 0
while s > 0:
    d += s
    s = int((s + f) / a)
    f = s % a
print(d)

情况

第三个测试点TLE，大概是第二个数是2